Hemostasis Aiding Device for Sustained Venous Access Wound Pressure
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Solution Overview
Problem
Existing wound closure methods, particularly in vascular access procedures, are time-consuming, require manual clinician intervention, and can lead to uneven pressure application, fatigue, and disruption of clotting, failing to mimic the effectiveness of manual pressure effectively.
Innovation Solution
A hemostasis aiding device with a pressure applying system comprising a malleable and non-malleable subsystem, coupled with a securing system using sutures and adhesives, to provide consistent and efficient wound closure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual pressure is applied by a physician or trained clinician, then hemostasis can be achieved, but the process is time-consuming and requires continuous clinician attendance for at least 30 minutes
Solution Approach 1:
The device enables self-service hemostasis by applying sustained pressure automatically without requiring continuous clinician attendance. The pressure application system maintains consistent force on the puncture site, allowing the wound to close autonomously while the patient remains ambulatory.
Solution Approach 2:
The device applies pressure in advance and maintains it continuously without interruption. By establishing pressure before the wound fully closes and sustaining it through the healing process, the device prevents re-bleeding and accelerates hemostasis without requiring prolonged clinician presence.
2Reliability
If manual pressure is applied to control bleeding, then hemostasis occurs, but the pressure may be applied unevenly causing disruption of the maturing clot
Solution Approach 1:
The pressure application system is designed to concentrate force precisely at the puncture site through a localized contact interface. This ensures uniform pressure distribution exactly where needed, preventing clot disruption while maintaining effective hemostasis control at the wound location.
Solution Approach 2:
The device maintains constant pressure parameters without variation over time. By controlling the magnitude and consistency of applied force, the device prevents fluctuations that could disrupt clot formation, ensuring stable hemostasis throughout the healing process.
3Productivity
If manual pressure is applied too firmly to stop bleeding, then hemostasis is achieved quickly, but blood flow may be completely occluded and clotting factors cannot accumulate
Solution Approach 1:
The pressure application system optimizes the magnitude of applied force to achieve effective hemostasis without excessive compression. By controlling pressure parameters within a therapeutic range, the device stops bleeding while maintaining sufficient blood flow for clotting factor accumulation and wound healing.
4Loss of information
If the person exerting manual pressure stops to examine the wound, then the wound can be monitored, but the application of pressure is disrupted causing clot maturation issues
Solution Approach 1:
The device provides autonomous pressure application without requiring clinician intervention or monitoring. The self-sustaining pressure system maintains continuous force on the wound site, eliminating interruptions that would occur with manual pressure application and ensuring uninterrupted clot maturation.
Solution Approach 2:
The pressure application operates continuously without interruption or discontinuity. The device maintains constant therapeutic pressure throughout the hemostasis process, ensuring uninterrupted clot formation and maturation while eliminating gaps that would occur during manual pressure pauses.
Data Source
AI summary
A hemostasis aiding device for use at wound sites associated with venous access procedures.